Work in a public place (cafe, library). Alternatively, here's my trick: I have a "work" Pandora station. I turn it on when it's time to work, and I never turn

Work in a public place (cafe, library). Alternatively, here's my trick: I have a "work" Pandora station. I turn it on when it's time to work, and I never turn it on unless I'm working. While it's on, it's time to work. When it pauses after an hour, I can choose either to take a short break -- with the music off -- or I can immediately re-start it and continue to work for the next hour. It's been a handy bit of mental conditioning.